Groove type photoelectric switch

Abstract

The utility model discloses a groove type photoelectric switch, which belongs to the technical field of photoelectric switches, and comprises a transmitting end, a receiving end and a light-transmitting shell, the transmitting end and the receiving end are wrapped and fixed by the light-transmitting shell, the light-transmitting shell is in a concave shape, the transmitting end and the receiving end are oppositely arranged, and the transmitting end and the receiving end are connected with the light-transmitting shell. According to the groove type photoelectric switch, a traditional plastic shell or a metal shell is abandoned, holes do not need to be formed in the shell, the structure is simple, the steps are simplified and reduced in the packaging production process of the groove type photoelectric switch, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photoelectric switches, and particularly relates to a groove-type photoelectric switch. Background Art

[0002] A photoelectric switch is a device that uses the photoelectric effect to detect the position, presence or movement of an object; a groove-type photoelectric switch is a special type of photoelectric switch, which usually includes a light-emitting device and a receiving device for detecting the presence or position of an object when it passes through the light beam. Photoelectric switches are commonly used in automatic control systems, such as material detection on an assembly line or the operation of automatic doors. It is a device that uses the principle of photoelectric conversion to detect the position or presence of an object, and determines the object by detecting the reflection or occlusion of light.

[0003] In the prior art, in addition to the light-emitting device and the receiving device, a groove-type photoelectric switch also requires a housing and filling glue. The light-emitting device and the receiving device are respectively placed in the corresponding positions of the housing, and then filled with glue to fix the positions of the light-emitting device and the receiving device. The housing can be a plastic housing or a metal housing. Since the light-emitting device must emit light to the receiving device, the housing is also provided with openings or slots at the corresponding positions so that the light of the light-emitting device is not blocked and the receiving device can smoothly receive the light.

[0004] However, the above structural shape also results in a relatively cumbersome packaging production process for groove-type photoelectrics and cannot further improve production efficiency. Summary of the Utility Model

[0005] In order to solve the problems of the cumbersome packaging production process and low production efficiency caused by the structural design of the existing groove-type photoelectric switch, the utility model provides a groove-type photoelectric switch with a simple structure and a simplified packaging production process.

[0006] The technical solution of the utility model lies in:

[0007] A groove-type photoelectric switch of the utility model includes a transmitting end, a receiving end and a light-transmitting housing. The transmitting end and the receiving end are wrapped and fixed by the light-transmitting housing. The light-transmitting housing is concave-shaped, and the transmitting end and the receiving end are arranged opposite to each other.

[0008] Preferably, the transmitting end includes a transmitting conductive part, a transmitting LED lamp bead and a transmitting light-shielding cover. The transmitting LED lamp bead is electrically connected to the transmitting conductive part. The transmitting light-shielding cover is fixed on the surface of the transmitting LED lamp bead, and the transmitting light-shielding cover is provided with a first opening; the receiving end includes a receiving conductive part and a receiving LED lamp bead, and the receiving LED lamp bead is electrically connected to the receiving conductive part.

[0009] Preferably, the transmitting end includes a transmitting conductive part, a transmitting LED lamp bead, and a transmitting light-shielding cover. The transmitting LED lamp bead is electrically connected to the transmitting conductive part. The transmitting light-shielding cover is fixed on the surface of the transmitting LED lamp bead, and the transmitting light-shielding cover is provided with a first opening. The receiving end includes a receiving conductive part, a receiving LED lamp bead, and a receiving light-shielding cover. The receiving LED lamp bead is electrically connected to the receiving conductive part. The receiving light-shielding cover is fixed on the surface of the receiving LED lamp bead, and the receiving light-shielding cover is provided with a second opening.

[0010] Preferably, the transmitting end includes a transmitting conductive part and a transmitting LED lamp bead. The transmitting LED lamp bead is electrically connected to the transmitting conductive part. The receiving end includes a receiving conductive part, a receiving LED lamp bead, and a receiving light-shielding cover. The receiving LED lamp bead is electrically connected to the receiving conductive part. The receiving light-shielding cover is fixed on the surface of the receiving LED lamp bead, and the receiving light-shielding cover is provided with a second opening.

[0011] Preferably, the transmitting end includes a transmitting conductive part and a transmitting LED lamp bead. The transmitting LED lamp bead is electrically connected to the transmitting conductive part. The receiving end includes a receiving conductive part and a receiving LED lamp bead. The receiving LED lamp bead is electrically connected to the receiving conductive part.

[0012] Further, the transmitting conductive part and the receiving conductive part are brackets or PCB boards.

[0013] Further, the light-transmitting outer shell is epoxy resin glue.

[0014] The beneficial effects of the present utility model are as follows:

[0015] A groove-type photoelectric switch including a transmitting end, a receiving end, and a light-transmitting outer shell is designed, abandoning the traditional plastic outer shell or metal outer shell, and there is no need to open holes on the outer shell. The simple structure enables the steps in the packaging production process of the groove-type photoelectric switch to be simplified and reduced, improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0017] Figure 2 It is a schematic diagram of the exploded structure of Embodiment 1 of the present utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the light-transmitting outer shell of a groove-type photoelectric switch of the present utility model;

[0019] Figure 4 It is a schematic diagram of the exploded structure of Embodiment 2 of the present utility model;

[0020] Figure 5Schematic exploded view of Embodiment 3 of the present utility model;

[0021] Figure 6 Schematic exploded view of Embodiment 4 of the present utility model;

[0022] Reference numerals: 1, transmitting end; 11, transmitting conductive part; 12, transmitting LED lamp beads; 13, transmitting light-shielding cover; 131, first opening; 2, receiving end; 21, receiving conductive part; 22, receiving LED lamp beads; 23, receiving light-shielding cover; 231, second opening; 3, light-transmitting outer shell; 31, first protrusion; 32, second protrusion; 33, gap. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] It should be noted that when an element is referred to as being "mounted on", "provided on", "covered on", "sheathed on", "clamped on" another element, it can be directly on the other element or indirectly on the other element.

[0025] It should be understood that in the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0026] In addition, the orientation or positional relationship indicated by terms such as "inside", "above", "between", "on both sides", "on one side", "top", "bottom", "side" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] It should be noted that the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", etc. may explicitly or implicitly include one or more of such features.

[0028] It should be noted that "and / or" herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Among them, A and B can be singular or plural respectively.

[0029] Embodiment 1

[0030] Please refer to Figures 1 - 3 , the present utility model provides a groove-shaped photoelectric switch, which includes a transmitting end 1, a receiving end 2 and a light-transmitting housing 3. The transmitting end 1 and the receiving end 2 are wrapped and fixed by the light-transmitting housing 3. The light-transmitting housing 3 is in a concave shape, that is, the light-transmitting housing 3 includes a first protrusion 31 and a second protrusion 32. There is a gap 33 between the first protrusion 31 and the second protrusion 32. The transmitting end 1 is arranged in the first protrusion 31, the receiving end 2 is arranged in the second protrusion 32, and the transmitting end 1 and the receiving end 2 are arranged opposite to each other.

[0031] Furthermore, the light-transmitting housing 3 is made of epoxy resin glue. Using epoxy resin glue as the housing, its hardness is sufficient to protect the transmitting end 1 and the receiving end 2, and it is resistant to high temperature and moisture-proof, and will not affect the performance of the transmitting end 1 and the receiving end 2. During the encapsulation production process, a concave-shaped mold is required. After the transmitting end 1 and the receiving end 2 are placed in the corresponding positions, the molten epoxy resin glue is poured into the mold. After cooling and solidifying and demolding, a groove-shaped photoelectric switch including the transmitting end 1, the receiving end 2 and the light-transmitting housing 3 is formed.

[0032] The groove-shaped photoelectric switch of the present utility model has a simple structure and can ensure stable functions. Compared with the photoelectric switch structures with traditional plastic housings and metal housings, its encapsulation production process reduces the plastic housing or metal housing, and there is no need to open holes in the housing, so the encapsulation production process is simplified, and the production efficiency can be effectively improved.

[0033] Specifically, the transmitting end 1 includes a transmitting conductive part 11, a transmitting LED lamp bead 12 and a transmitting light-shielding cover 13. The transmitting LED lamp bead is electrically connected to the transmitting conductive part 11. The transmitting light-shielding cover 13 is fixed on the surface of the transmitting LED lamp bead 12. The transmitting light-shielding cover 13 is provided with a first opening 131. The light emitted by the transmitting LED lamp bead 12 is transmitted to the receiving end 2 through the first opening 131. The first opening 131 can more precisely control the emission direction and angle of the light, which helps to ensure that the light beam can be accurately transmitted to the receiving end 2; since the light is only emitted in a specific direction, compared with omnidirectional emission, the energy consumption is lower, which helps to save energy; by restricting the emission direction of the light, the influence of external light sources or stray light on the sensor can be reduced, and the detection accuracy and stability can be improved; it can also make the photoelectric switch more flexibly adapt to different detection scenarios and installation requirements; the receiving end 2 includes a receiving conductive part 21 and a receiving LED lamp bead 22, and the receiving LED lamp bead 22 is electrically connected to the receiving conductive part 21.

[0034] Further, the transmitting conductive part 11 and the receiving conductive part 21 are brackets or PCB boards; as shown in the figure, both the transmitting conductive part 11 and the receiving conductive part 21 are brackets. The upper half of the bracket, together with the transmitting LED lamp bead 12 and the receiving LED lamp bead 22, is filled and wrapped with epoxy resin glue. The lower half of the bracket is exposed outside the light-transmitting housing 3 and serves as pins for connection to the circuit; when both the transmitting conductive part 11 and the receiving conductive part 21 are PCB boards, the optoelectronic switch can be a surface-mounted type with no pins exposed.

[0035] Embodiment 2

[0036] Referring to Figure 4 , the difference from Embodiment 1 is that: the transmitting end 1 includes a transmitting conductive part 11, a transmitting LED lamp bead 12, and a transmitting light-shielding cover 13. The transmitting LED lamp bead 12 is electrically connected to the transmitting conductive part 11. The transmitting light-shielding cover 13 is fixed on the surface of the transmitting LED lamp bead 12, and the transmitting light-shielding cover 13 is provided with a first opening 131; the receiving end 2 includes a receiving conductive part 21, a receiving LED lamp bead 22, and a receiving light-shielding cover 23. The receiving LED lamp bead 22 is electrically connected to the receiving conductive part 21. The receiving light-shielding cover 23 is fixed on the surface of the receiving LED lamp bead 22, and the receiving light-shielding cover 23 is provided with a second opening 231.

[0037] Embodiment 3

[0038] Referring to Figure 5 , the difference from Embodiment 1 is that: the transmitting end 1 includes a transmitting conductive part 11 and a transmitting LED lamp bead 12. The transmitting LED lamp bead 12 is electrically connected to the transmitting conductive part 11; the receiving end 2 includes a receiving conductive part 21, a receiving LED lamp bead 22, and a receiving light-shielding cover 23. The receiving LED lamp bead 22 is electrically connected to the receiving conductive part 21. The receiving light-shielding cover 23 is fixed on the surface of the receiving LED lamp bead 22, and the receiving light-shielding cover 23 is provided with a second opening 231.

[0039] Embodiment 4

[0040] Referring to Figure 6 , the difference from Embodiment 1 is that: the transmitting end 1 includes a transmitting conductive part 11 and a transmitting LED lamp bead 12. The transmitting LED lamp bead 12 is electrically connected to the transmitting conductive part 11; the receiving end 2 includes a receiving conductive part 21 and a receiving LED lamp bead 22. The receiving LED lamp bead 22 is electrically connected to the receiving conductive part 21.

[0041] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A slot-type photoelectric switch, characterized in that: The invention comprises a transmitting end (1), a receiving end (2) and a light-transmitting shell (3), wherein the transmitting end (1) and the receiving end (2) are wrapped and fixed by the light-transmitting shell (3), the light-transmitting shell (3) is in a concave shape, and the transmitting end (1) and the receiving end (2) are arranged opposite to each other, the transmitting end (1) comprises a transmitting conductive part (11), a transmitting LED lamp bead (12) and a transmitting light shield (13), the transmitting LED lamp bead (12) is electrically connected to the transmitting conductive part (11), the transmitting light shield (13) is fixed to the surface of the transmitting LED lamp bead (12), and the transmitting light shield (13) is provided with a first opening (131); the receiving end (2) comprises a receiving conductive part (21) and a receiving LED lamp bead (22), and the receiving LED lamp bead (22) is electrically connected to the receiving conductive part (21).

2. The slot-type photoelectric switch according to claim 1, characterized in that: The transmitting end (1) comprises a transmitting conductive part (11) and a transmitting LED lamp bead (12), wherein the transmitting LED lamp bead (12) is electrically connected to the transmitting conductive part (11); the receiving end (2) comprises a receiving conductive part (21) and a receiving LED lamp bead (22), wherein the receiving LED lamp bead (22) is electrically connected to the receiving conductive part (21).

3. The slot-type photoelectric switch according to claim 1, characterized in that: The transmitting conductive part (11) and the receiving conductive part (21) are brackets or PCB boards.

4. The slot type photoelectric switch according to claim 1, characterized in that: The light-transmitting shell (3) is made of epoxy resin glue.

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